At the age of 12 Bruno Rossati began working eleven hour days.
"Now, approaching 91, I find myself reminiscing about my youth, still riding my motorcycle every day.
Letter re Ladetto
Bonnet & Guyonnet built motocyclettes at 54, Rue d'Hautpoul, Paris, 1907~1910.
M. Canonne had also been involved with the firm, it appears, and left on Christmas Day in 1910. The firm at that time were still building motorcycles. An advertisement appeared in September 1918 "Automobilia" for La Roue Métalliques "PHEBUS" (metal wheels). They also built the Daring motorcycle.
The firm still existed in 1926 but did not appear to be building motorcycles.
Sources: babethhistoires.centerblog.net, Bourdache p435
